Furnace construction, including portable wall panel



Nov. 6, 1956 v R. E. OVER 2,769,410

FURNACE CONSTRUCTION, INCLUDING PORTABLE: WALL PANEL Filed Dec. 15, 1954Z Z5 j jjj fz* Iy. gama/5I mean@ FURNACE CONSIRUCTN, lNCLUDlNG PORTABLEVIALE PANEL Raymond E. Over, Mok-ena, lll., assigner to H.

Detrick Company, Chicago, ill., a corporation of Delaware ApplicationDecember 13, w54, Serial No. 474,8tl9

2 Claims. (Cl. lill-1) This invention relates to a portable furnacepanel comprising refractory brick and associated supporting structurewhich may be prefabricated and installed as a unit in a new or oldfurnace wall or arch.

The portable panel of the invention is suitable for wall portions of anopen hearth furnace such, for example, as a lintel over a charging door,a load bearing uptake wall support, or a pier between charging doors. ltalso is suitable for other wall portions and for wall or arch portionsof other types of furnaces, as will be seen.

Open hearth and other large, igh temperature furnaces .usually areoperated continuously until some major com- One object of the inventionis to provide a prefabricated f portable panel which quickly can beinstalled in a furnace mainly by means of mechanical equipment.

Another object is to provide a prefabricated portable lpanel which issuitable for use in new or old furnaces.

Suitable panel supporting means easily may be incorporated in the designof a new furnace and they readily may be applied to the existingsuperstructure of an old furnace. Another object is vto provide apanelfparticularly suitable for repairing certain short-iived portionsof a furnace wall such, for example, as a lintel over a charging door ora pier between charging doors. These wall portions, as will beunderstood, are subject to deterioration from the physical acts involvedin charging the furnace as well as from the destructive action of hightemperature gases.

Another object is to provide a prefabricated portable panel which wheninstalled has substantial load bearing characteristics so that it iscapable of giving vertical support to a number of superpose-d rows ofrefractory brick. This feature of the panel is particularly valuablewhen the panel is used in the upper portion of a wall adjacent themarginal edge of a dat arch, as in the case of a lintel over a chargingdoor in an open hearth furnace. In such application the portable panelsupports several tiers of refractory brick which fill the space betweenthe top of the refractory brick in the panel and the adjacent marginaledge of the flat arch.

Another object of the invention is to provide a simple, inexpensivebrick retainer which cooperates to secure in position the refractorybrick used in the panel.

Still another object is to provide a prefabricated portable panel whichuses only a few simple component parts and which incorporatesstandard-shape refractory brick. The panel may be fabricated at a remotelocation or under desirable conditions at the furnace site and easilytransported to the place of installation.

atent O "ice When 'subject portable panels-are installed as originalequipment, subsequent replacement'when 'necessary'v isparticularlysimple, although the design yis such that the panel isinstalled easily in existing furnaces. 'v'

Other objects, advantages and features of the inveiitln will be apparentas the descriptiony proceeds, reference being had to theaccompanying'drawing wherein two forms of the invention are shown. It tobe understood lthat the description and drawing are illustrative only'andth'at the scope of the invention is to be measured bythe appendedclaims.

ln the drawing: y

Fig. 1 is a front elevational view of a portable furnace panel embodyingthe invention, the `'panelbe'ing' shown mounted with respect topa pair`of spaced furnacejcolpnns;

Fig. 2 is a Vtop plan view of the panel shown vin Fig. l, the view beingtaken on line 2-2 through the furnace columns; A v

Fig. 3 is an enlarged sectional view on line 3-"3Wof Fig. l, certaincomponents being shown in dotteldline because they are located to theright of the section line;

Fig. 4 is a sectional view on line '4-4 of Fig. 3f;

Fig. 5 is a view, partly in section, of a modified vforni of panelillustrating application thereof to a furnace wall adjacent the marginaledge of a at arch, and' Fig. 6 is a perspective view of an element'forming part of a brick retainer used in the panel. i Y I Referring nowto Figs. land 2 of the drawing, 'the numerals 10 and 11 designatevertical columns in they steel superstructure which surrounds andsupports the walls and arch of a furnace. A transverse panel-supporpingmember 12 extends horizontally between columnsdl'and 1,1, the ends ofmember 12 being welded or otherwise suitably secured to the columns. .A

A portable panel ls'embodying the invention comprises a mountingstructure including a backing mea'r'ijs k1 6 'of predetermined size andshape; 4V.ln the form Vof thelin ntion shown, backing means" 16 is ametal'plat of ectangular shape, the plate being disposedvin ageeallyverticalplane. A I

The mounting structure also includes a'parofw horizontally extending,vertically spaced upper' andjlo erjangle members 17 and 18,respectively. One lego ich' angle member is` secured as by Vriveli-lingtor-th front" face of backing means 16 while the other leg extends in adirection normal to the front face of backing means 16, as best shown inFig. 3. In some applications upper angle member 17 may be eliminated, ifdesired.

The one or two angle members 17 and 18 each constitutes a forwardlyextending flange on backing means 16. These flanges, as will be seen,function, in the case of angle member 1S, to provide vertical supportfor refractory brick contained in the panel and, in the case of anglemember 17, to support both panel and superposed brick and to aid insupporting the panel.

vMeans Vare provided for supporting the panel in position in a furnacewall and, in the form illustrated, such means comprise a pair of spacedhook-like members 20 and 21, best shown in dotted lines in Fig. 3.Members 20 and 21 are mounted, as by welding, to the top of backingmeans 16 and to angle member 17 if the latter be provided. Transversemember 12, previously mentioned, is received Within hook recesses 22 tothus support the panel, backing means 16 of the panel lying flushagainst columns 10 and 11.

A lifting lug 25 having an aperture 26 may be provided at the topcentral portion of the mounting structure, as best shown in Fig. l.

The front face of the mounting structure carries a plurality ofhorizontally and vertically spaced brick retainers 28, each comprisingan elongated member 30 (Fig. 6) having a transverse aperture 31 at oneend. A rod 32 isimounted. symmetrically-in apertureSlas shown r4in.

'In thenform of the `invention shown,` a brick retainer 28 includes athreaded stud'133 secured at one end to the mounting structure.--In someca 1ses. srt uds 33A are welded -jor- V'otheryr-1ises ecured to backingmeans and in` other cases to the legsof angle members. 17 and 18 whichare connected to backingmeans 16, as shown in Fig; 3. VElon gatedmemberv 30 has an internally threaded axial bore 34. (Fig. '16)whchreceives .the threaded YendV of stud 33. lWithvthis arrangementbrick retainer 28 is somewhat ad- `instable. in ordergto providecompensation for variation in-.the dimensions of brick associated'withthe retainers.

.w'lhrceftiersor rows of Vrefractory brick are shownmountedinitheqillustrated'panel. The outside (upper and lower) rows aremade up of brick 36 Vand 37 while the center oir/inside row made VupV ofbrick 3S. Y Brick 36, ,377, and 38 havev standard 'shapes including, Vinthe case of Ybrick' 36fand; 37, relieved portions to accommodate'theflangesror legs 'of angle members 17 and 18 and re- .cesses at. theVinner brick ends to accommodate brick retainers. As best shown in Fig.4,'a lbrick retainer 28 is 'y received in; recesses 40 and 41respectively Aprovided in v,each of an adjacent pair ofY brick.Retainers 28 are effective to jhold Vth'e-individual'brick in positionin the panel. When a panelis fabricated at substantial distance from.the point of installation it usually is desirable to secure the bricksytogether laterally by means of a steel band encircling theassembledbrick. Such a band is shown in dotted'lin'e' at 42 inFig. 2. Y.

Referring to Fig. 5, a portable panel 45 is shown mount- 'ed in, afurnacewall adjacent the marginal edge of a flat -areh generallydesignated 46. Itis to be noted that mar-V Qginaledge 47,.Vof arch 46 isin general alignment with `ii1rler"faee,48 of panel.45 which in turn isin general aligr1n1er|tY with the'furnace Wall below the panel.V Thelwallbelojw panelSV is shown in dotted outline in Fig. 5

and designated 50.k It is also Vto benoted that wall 50 has an upperterminationvsomewhat below the'plane of inner face 51' of arch'46; Y

Panel 45 is` disposed in the wall space between the upperV terminatinofwall 50 ,and the plane of inner face SMI of arch 46 as shown in Fig.V5.' Backing means 53 of panel 45 extends somewhat above the top of thethird brick row of panel 45l and is provided with hook members 54to`Aengagea transverse member 12 extending between 'r'wall columns. g

The space between the top of the upper row of brick Vported by panel 45.

forming-part of panel- 45 and the marginal edge 47aoffarch 46 containsseveral rows of brick all of which are supshown in Fig. 5 as well as alayer of insulating material Y 56 and an expansion joint 57. Fig. 5 thusis illustrative of one of many possible applications for a portablepanel constructed according tothe invention.

.From the above description it is thought that the construction andadvantages of myrinvntion will be VAreadily apparent to those skilledinthe art. .Various changes in detail may be made without departingfromthe spiritor losing the advantages of the invention. i

Having thus described my inventiomwhat Iclaim as new and desire tosecure by Letters Patent is; l

1. In a furnace having anV arch and a wall adjacent one marginal edgethereof, said archterminating in general alignment with the inner faceof said Wall and said wall terminating below the plane of the inner faceof said arch, the combination therewith of a portable wall paneldisposed in part in the wall space between the top of said wall and saidplane, said panel comprising mounting structure including backing meansand a horizontal flange extending inwardly along the lower edge offsaidbacking means, a plurality of horizontally and vertically v spacedbrick'retainers mounted on the inner face of said mounting structure andvertically adjacent horizontal rows of refractory brick carried by saidmounting structure and engaging said brick retainers, a row of saidbrick engaging said iange` vand being vertically Vsupported thereby.

2. The combination of claim l with the addition of vertically adjacenthorizontalrows of brick supported. by

the upper brick row of said portable wall panel and lling the spacebetween the upper 'brickrow of saidvwall panel and the marginal edge ofsaid arch. Y

. ReferencesY Cited in the kfile of this' patent UNITED srAr'EsrAraNrs YMorin Nov. 17,1'1891 Great Britain f Dec. 17,'119'31 Five rows of suchbrick are

